LEADER 02749nam 2200565Ia 450 001 9910459766703321 005 20200520144314.0 010 $a1-58729-267-X 035 $a(CKB)2670000000079019 035 $a(EBL)837047 035 $a(OCoLC)712059605 035 $a(SSID)ssj0000470473 035 $a(PQKBManifestationID)11300824 035 $a(PQKBTitleCode)TC0000470473 035 $a(PQKBWorkID)10412054 035 $a(PQKB)10309954 035 $a(MiAaPQ)EBC837047 035 $a(MdBmJHUP)muse2960 035 $a(Au-PeEL)EBL837047 035 $a(CaPaEBR)ebr10447299 035 $a(EXLCZ)992670000000079019 100 $a20000324d1998 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aIowa's geological past$b[electronic resource] $ethree billion years of earth history /$fWayne I. Anderson 210 $aIowa City $cUniversity of Iowa Press$dc1998 215 $a1 online resource (440 p.) 225 1 $aA bur oak original 300 $aDescription based upon print version of record. 311 $a0-87745-639-9 311 $a0-87745-640-2 320 $aIncludes bibliographical references (p. [385]-414) and index. 327 $aContents; Preface; 1. The Geologic Setting of Iowa; 2. Precambrian: The Oldest Rocks; 3. Cambrian: Sandy Marine Shelves and Shorelines; 4. Ordovician: Warm, Shallow Seas; 5. Silurian: Dolomite and Carbonate Mounds; 6. Devonian: A Variety of Marine Deposits; 7. Mississippian: Last of the Widespread Carbonate Seas; 8. Pennsylvanian: Coastal Swamps and Shallow Seas; 9. Mesozoic: Evaporite Deposits and the Last of the Inland Seas; 10. Cenozoic: Erosion Climaxed by the Great Ice Age; 11. Geology and Humankind; References; Index 330 $aIowa's rock record is the product of more than three billion years of geological processes. The state endured multiple episodes of continental glaciation during the Pleistocene Ice Age, and the last glacier retreated from Iowa a mere (geologically speaking) twelve thousand years ago. Prior to that, dozens of seas came and went, leaving behind limestone beds with rich fossil records. Lush coal swamps, salty lagoons, briny basins, enormous alluvial plains, ancient rifts, and rugged Precambrian mountain belts all left their mark. In Iowa's Geological Past, Wayne Anderson gi 410 0$aBur oak original. 606 $aGeology$zIowa 608 $aElectronic books. 615 0$aGeology 676 $a557.77 700 $aAnderson$b Wayne I.$f1935-$0871222 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910459766703321 996 $aIowa's geological past$91944884 997 $aUNINA